| Eskay Fine Art Limited | Dymchurch | 2014 |
| Eskdale Experiences Ltd | Chippenham | 2018 |
| Eskdale Golf and Country Estate Ltd | Holmrook | 2019 |
| Eskdale Golf Club & Cafe Ltd | Millom | 2024 |
| Eskfest Limited | Kendal | 2018 |
| Eski's World Art Ltd | London | 2020 |
| Eskimo 11 Limited | Fareham | 2008 |
| ESKIMO8 Limited | Beaconsfield | 2006 |
| Eskmouth Services Ltd | Musselburgh | 2024 |
| Eskra Community Association | Omagh | 2000 |
| ESM Cambridgeshire Limited | Newcastle | 2024 |
| ESM Hockey Club Limited | Edinburgh | 2023 |
| ESM Norfolk Limited | Newcastle | 2024 |
| ESM Padel Ltd | Bishop'S Stortford | 2026 |
| ESM Sussex Limited | Newcastle | 2024 |
| Esme Appleton Ltd | London | 2023 |
| Esme Fletcher Photography Ltd | Leamington Spa | 2018 |
| Esmee LDN Limited | Chorley | 2026 |
| Esmee Studio London Limited | Knutsford | 2012 |
| Esmeralda Conde Ruiz Studios Limited | Southwark | 2021 |
| Esmonde & Larbey Limited | London | 1970 |
| ESN Media Limited | London | 2022 |
| ESO (2006) Limited | Worcester | 2006 |
| ESO Music Group Ltd | Bristol | 2019 |
| ESO Sport Media Limited | Dorking | 2015 |
| Esoterica Entertainment Ltd | Bury St. Edmunds | 2022 |
| Esounds.Live Ltd | London | 2025 |
| ESP Arenas Limited | Bury | 2025 |
| ESP Art Ltd | Chelmsford | 2015 |
| ESP NYC Ltd | London | 2019 |
| ESP Physio Corporate Limited | Grangemouth | 2019 |
| ESP Play Limited | Edinburgh | 2009 |
| Espacio Gallery London Ltd | Bromley | 2024 |
| Espc Dundee Ltd | Dundee | 2024 |
| Especially for YOU Creations Limited | Dover | 2012 |
| Especially for YOU Parties Ltd | Tonbridge | 2014 |
| Esph Clinic Limited | London | 2013 |
| Esph Llfg Limited | Billericay | 2013 |
| Espilates Limited | Shenstone | 2024 |
| Espindola Ltd | Grimsby | 2017 |
| Espionage Missions Ltd | Lytham St. Annes | 2015 |
| Espn Global Ventures Limited | Liverpool | 2002 |
| Espoir GK Limited | High Wycombe | 2021 |
| Esporta Health & Fitness Limited | London | 1994 |
| Esports Agents Limited | London | 2026 |
| Esports Player Limited | Oldham | 2026 |
| Esports Talent Agency Ltd | Woking | 2025 |
| Esports Youth Club C.I.C. | London | 2021 |
| Espression Arts CIC | Minster | 2017 |
| Espression Limited | Minster | 2005 |
| Espressivo Chorus Ltd | Market Rasen | 2016 |
| Espresso Animation Limited | London | 2003 |
| Espresso Cycle Coaching Ltd | Falkirk | 2018 |
| Espresso Songs Ltd | London | 2007 |
| Espresso Studios Ltd | Tamworth | 2026 |
| Esprit Academy Limited | Swindon | 2002 |
| Esprit Fitness Limited | Essex | 2003 |
| Esprit Kids Ltd | Wokingham | 2022 |
| Esprit Performing Arts Ltd | Swindon | 2020 |
| Esprit Yoga Ltd | Lichfield | 2020 |
| Espro Limited | Kettering | 2005 |
| Esqa Limited | Glasgow | 2018 |
| Esque Films Ltd. | Hertford | 2023 |
| Esquires Music Group Ltd | London | 2015 |
| ESS ERR Limited | Southwark | 2017 |
| Essay Time Limited | Burford | 2020 |
| Essendon Equestrian Limited | London | 2024 |
| Essendon Golf Club Limited | Hatfield | 2025 |
| Essentia Wellness Ltd | Buntingford | 2026 |
| Essential Barbers Furzton Limited | Milton Keynes | 2012 |
| Essential DJS Limited | Newcastle Upon Tyne | 2013 |
| Essential Film and Television Productions Limited | Chelmsford | 1983 |
| Essential Nitrate WK Ibiza Limited | Polegate | 2016 |
| Essential Orchestra Ltd | London | 2026 |
| Essential Orchestra Productions Ltd | London | 2026 |
| Essential Promotions Limited | Newark | 1991 |
| Essential Staging Limited | Cambridge | 2019 |
| Essential Strength Limited | Liverpool | 2023 |
| Essential Therapeutics Limited | Thornliebank | 2007 |
| Essential Training (Essex) Limited | Rayleigh | 2020 |
| Essentially Wildlife Ltd | Frimley | 2020 |
| Essex & Herts Flight for Life Lottery Critical Care Ltd | Colchester | 2019 |
| Essex & Herts Flight for Life Lottery Limited | Earls Colne Colchester | 2001 |
| Essex & Herts Flight for Life Lottery Operations Ltd | Colchester | 2019 |
| Essex & Herts Shooting School Ltd | Dunmow | 2019 |
| Essex and Cambridge Events Limited | Cambridge | 2025 |
| Essex and Suffolk Gliding Club Limited | Colchester | 1997 |
| Essex Ball Mastery Ltd | Maldon | 2025 |
| Essex Book Festival | Colchester | 2011 |
| Essex Bounce House Ltd | Hornchurch | 2026 |
| Essex Boxing Organisation Limited | Colchester | 2025 |
| Essex Brewing and Events Limited | Colchester | 2017 |
| Essex Carp Syndicates Ltd | West Horndon | 2021 |
| Essex Chamber Orchestra Limited | Market Rasen | 2023 |
| Essex Charge CIC | London | 2023 |
| Essex Christmas Wonderland Limited | Wickford | 2021 |
| Essex Circus Academy Limited | Basildon | 2025 |
| Essex Combat DEN Limited | Harlow | 2025 |
| Essex Comps Limited | Braintree | 2024 |
| Essex County Cricket Club Enterprises Limited | Chelmsford | 1998 |